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July 13, 2018

Industrial and Steel Mill Grade versions of the 125 Volt to 24 Volt DC/DC Converters 50 Amp, 1200 Watts, Reliable Heavy Duty

100 amp 12 volt heavy duty DC/DC converter, 125V input, 12 VDC output
Wide voltage range 100 volts to 140 volts DC
Ultra-quiet, precisely regulated switching power converters (switchmode), designed to allow the use of even power-noise sensitive 24 volt equipment in steel mills, mines, and other systems where 125VDC is available. These are attractive, reliable, robust DC/DC converters. Robust, with a high tolerance for shock and vibration, polarity protected and dirty-power protected.

To determine the amperage you need just add up the watts of all the 24V equipment and divide by 24 volts. These high voltage DC converters have a 3 year warranty.

The Steel Mill option includes immunity to spikes up to 1000V. These are also designed to be used where permanent connection is desired.
Big DC-DC Converters

Heavy Duty
50 Amp
125VDC to 24VDC Converter

20 amp heavy duty DC/DC converter, 250V input, 12VDC output

Steel Mill Grade 50 Amp
125VDC to 24VDC DC Converter

20 amp heavy duty DC/DC converter, 250V input, 12VDC output
Part Number
and Price
(replaces PVTC1503-110-24)
Allow up to 15 days for manufacturing
(replaces PVTC1503-110-24-SM)
Allow up to 15 days for manufacturing
Input Voltage Nominal: 125VDC, Range: 100 to 140VDC
250VDC input available
Output Voltage 27.2VDC (24V on special request)
Output Current 50 Amps
Maximum Continuous Power 1360W at 27.2V output
1200W at custom 24 volt output
Operating Temperature Range -25°C to +40°C
Derating Derate at -2.5% per °C up to +70°C
Load Regulation <±0.5% excluding cable resistance
Duty Cycle 100% power for 24 hours/day
Line Regulation <±0.5%
Output ripple and noise <50 mV rms
Efficiency >80 %
Output current limit? Short circuit protection
Cooling Fan comes on when needed
Input Fuse 25A MDA
Isolation Fully Isolated
Input-Output 1500 VDC,
500 VDC
Fully Isolated
Input-Output 1500 VDC,
500 VDC
Immune to voltage spikes up to 1000 Volts
Front panel Off/On rocker switch, fuse, and indicator lights to indicate "output present" and "over-temperature"
Connections Input cord AWG 6
Output cables AWG 6
Protection Over Voltage Crowbar, Over Current, Short Circuit , Reverse Polarity , Over Load, Thermal shut-down, Current limiting
Case Black, hard anodized Military Grade extrusion ensures a high tolerance for shock and vibration.
Weight 14.4 lb, 6.6 kg
Audible Noise None at 3 feet, 34.5 dB when fan is operating
Warranty 3 years
Dimensions 17 x 8.2 x 3.5 inches
43.2 x20.8 x 8.9 cm
dimensions do not include the carrying handle, see drawing below

case drawing


OEM Battery Chargers High efficiency boost converter for 120 volts input, 24 volts 1400 watts output.

OEM Power Supplies Excellent line and load regulation with low electronic, EMI, and audio noises

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